I kind of agree, in the sense that with 808 Kanye mastered a certain set of tools that I think were crucial in making Yeezus.
And MBDTF, well the sound of the album was all about harmony, and I think that directed Kanye in the opposite direction for Yeezus; trying to capture both harmony and chaos within a very cohesive piece of art

Here’s my interpretation (roughly): 808s is a sad, but not un-hopeful, outpouring of emotion. MBDTF is Ye moving down a darker path after more-or-less accepting the difficulty of life. Yeezus Ye either mostly or completely accepts the darkness and has become quasi-nihilistic or even despairing (think Tchaikovsky’s Symphony No. 6).